Finding the Fourth Proportional to 478,479,489.44, 717,719,235.12 and 114,973,845.92
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Solution
The fourth proportional to 478,479,489.44, 717,719,235.12 and 114,973,845.92 is: 172,460,769.11
Step by Step Solution
- Step 1: Write the proportion equation
478,479,489.44 : 717,719,235.12 = 114,973,845.92 : x - Step 2: Convert to fraction form
478,479,489.44/717,719,235.12 = 114,973,845.92/x - Step 3: Cross multiply
478,479,489.44x = 717,719,235.12 × 114,973,845.92 - Step 4: Simplify right side
478,479,489.44x = 82,518,940,752,507,136 - Step 5: Solve for x
x = 82,518,940,752,507,136/478,479,489.44 - Step 6: Final answer
x = 172,460,769.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.